As the leading manufacturer of performance throttle bodies for today's cars and trucks, it's no surprise that BBK's offering for these popular items continues to grow yearly. BBK has you covered when it comes to affordable performance. BBK Throttle Bodies start with a precision 356 aluminum alloy casting which is machined on ultra-modern CNC machining centers to exact tolerances. Then each unit is assembled with high quality BBK components such as an o-ringed shaft, double sealed roller bearings, precision die-stamped linkage assemblies along with factory quality fittings and connectors to ensure a perfect installation and life-long use.